Add hybrid data uris + records

[blythed]

Description

Allows users to combine local filesystem with data in the database. Web content and s3 are downloaded
to hashlib.sha1(uri).

Related Issues

#308

Checklist

• Is this code covered by new or existing unit tests or integration tests?
• Did you run make test successfully?
• Do new classes, functions, methods and parameters all have docstrings?
• Were existing docstrings updated, if necessary?
• Was external documentation updated, if necessary?

[codecov-commenter]

Codecov Report

Patch coverage: 90.41% and project coverage change: +0.31% 🎉

Comparison is base (08d2107) 79.62% compared to head (0e8d018) 79.93%.

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #641      +/-   ##
==========================================
+ Coverage   79.62%   79.93%   +0.31%     
==========================================
  Files          79       80       +1     
  Lines        4825     4865      +40     
==========================================
+ Hits         3842     3889      +47     
+ Misses        983      976       -7     

Files Changed	Coverage Δ
superduperdb/base/configs.py	97.29% <ø> (ø)
superduperdb/db/base/build.py	96.00% <ø> (ø)
superduperdb/misc/files.py	80.76% <80.76%> (ø)
superduperdb/db/base/download_content.py	88.23% <87.50%> (+0.48%)	⬆️
superduperdb/db/base/download.py	84.32% <95.23%> (+4.32%)	⬆️
superduperdb/base/config.py	100.00% <100.00%> (ø)
superduperdb/container/document.py	90.66% <100.00%> (-1.12%)	⬇️
superduperdb/db/base/cursor.py	89.47% <100.00%> (+0.79%)	⬆️
superduperdb/db/base/db.py	65.00% <100.00%> (ø)
superduperdb/db/mongodb/query.py	84.78% <100.00%> (+1.69%)	⬆️
... and 1 more

... and 1 file with indirect coverage changes

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.